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Aneli [31]
3 years ago
14

Assume we perform a known-plaintext attack against DES with one pair of plaintext and ciphertext. How many keys do we have to te

st in a worst-case scenario if we apply an exhaustive key search in a straightforward way? How many on average?
Computers and Technology
1 answer:
nasty-shy [4]3 years ago
5 0

Answer:

2^{55} keys in a worst case scenario

Explanation:

So, Average will be : 2^{56} /2

2^{55}(Answer)

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A software firm is going to develop an application for the automation of various office activities within an organization. In th
Lyrx [107]

Answer:

Horizontal partitioning

Explanation:

As the planned software will be used inside an office, the ideal is that the system uses horizontal partitioning. This is because a clerk performs a large number of activities with a high degree of variability. To support this type of service, horizontal partitioning is recommended because it allows the partition of tables in many lines, in addition to promoting the connection between different tables. Vertical partitioning cannot do this type of activity, which would end up limiting software that would not work satisfactorily.

3 0
4 years ago
Which string method returns true if the character is a lowercase letter?
Vedmedyk [2.9K]

Answer:

Option 2, letter.islower() is correct

Explanation:

letter.islower() returns true when the string "letter" is lowercase.

3 0
3 years ago
In Qbasic how I type the diference between two numbers?
zavuch27 [327]

Answer:

REM PROGRAM TO DISPLAY SUM OF TWO NUMBERS

CLS

INPUT “ENTER FIRST NUMBER”; A

INPUT “ENTER SECOND NUMBER”; B

S = A + B

PRINT “SUM OF TWO NUMBERS”; S

END

USING SUB PROCEDURE

DECLARE SUB SUM (A, B)

CLS

INPUT “ENTER FIRST NUMBER”; A

INPUT “ENTER SECOND NUMBER”; B

CALL SUM(A, B)

END

SUB SUM (A, B)

S = A + B

PRINT “SUM OF TWO NUMBERS”; S

END SUB

USING FUNCTION PROCEDURE

DECLARE FUNCTION SUM (A, B)

CLS

INPUT “ENTER FIRST NUMBER”; A

INPUT “ENTER SECOND NUMBER”; B

S = SUM(A, B)

PRINT “SUM OF TWO NUMBERS”; S

END

FUNCTION SUM (A, B)

SU = A + B

SUM = SU

END FUNCTION

2. Enter any two numbers and display its difference.

REM PROGRAM TO DISPLAY DIFFERENCE OF TWO NUMBERS

CLS

INPUT “ENTER FIRST NUMBER”; A

INPUT “ENTER SECOND NUMBER”; B

D = A - B

PRINT “DIFFERENCE OF TWO NUMBERS”; D

END

USING SUB PROCEDURE

DECLARE SUB DIFF (A, B)

CLS

INPUT “ENTER FIRST NUMBER”; A

INPUT “ENTER SECOND NUMBER”; B

CALL DIFF(A, B)

END

SUB DIFF (A, B)

D = A - B

PRINT “DIFFERENCE OF TWO NUMBERS”; D

END SUB

USING FUNCTION PROCEDURE

DECLARE FUNCTION DIFF (A, B)

CLS

INPUT “ENTER FIRST NUMBER”; A

INPUT “ENTER SECOND NUMBER”; B

DI = DIFF(A, B)

PRINT “DIFFERENCE OF TWO NUMBERS”; DI

END

FUNCTION DIFF (A, B)

D = A - B

DIFF = D

END FUNCTION

3. Enter any two numbers and display its product.

REM PROGRAM TO DISPLAY PRODUCT OF TWO NUMBERS

CLS

INPUT “ENTER FIRST NUMBER”; A

INPUT “ENTER SECOND NUMBER”; B

P = A * B

PRINT “PRODUCT OF TWO NUMBERS”; P

END

USING SUB PROCEDURE

DECLARE SUB PROD (A, B)

CLS

INPUT “ENTER FIRST NUMBER”; A

INPUT “ENTER SECOND NUMBER”; B

CALL PROD(A, B)

END

SUB PROD (A, B)

P = A * B

PRINT “PRODUCT OF TWO NUMBERS”; P

END SUB

USING FUNCTION PROCEDURE

DECLARE FUNCTION PROD (A, B)

CLS

INPUT “ENTER FIRST NUMBER”; A

INPUT “ENTER SECOND NUMBER”; B

PR = PROD(A, B)

PRINT “PRODUCT OF TWO NUMBERS”; PR

END

FUNCTION PROD (A, B)

P = A * B

PROD = P

END FUNCTION

4. Enter any two numbers and display its average.

REM PROGRAM TO DISPLAY AVERAGE OF TWO NUMBERS

CLS

INPUT “ENTER FIRST NUMBER”; A

INPUT “ENTER SECOND NUMBER”; B

AV = (A + B) / 2

PRINT “AVERAGE OF TWO NUMBERS”; AV

END

USING SUB PROCEDURE

DECLARE SUB AVERAGE (A, B)

CLS

INPUT “ENTER FIRST NUMBER”; A

INPUT “ENTER SECOND NUMBER”; B

CALL AVERAGE(A, B)

END

SUB AVERAGE (A, B)

AV = (A + B) / 2

PRINT “AVERAGE OF TWO NUMBERS”; AV

END SUB

USING FUNCTION PROCEDURE

DECLARE FUNCTION AVERAGE (A, B)

CLS

INPUT “ENTER FIRST NUMBER”; A

INPUT “ENTER SECOND NUMBER”; B

AVGR = AVERAGE(A, B)

PRINT “AVERAGE OF TWO NUMBERS”; AVGR

END

FUNCTION AVERAGE (A, B)

AV = (A + B) / 2

AVERAGE = AV

END FUNCTION

Explanation:

Pls mark brainliest

8 0
2 years ago
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Lilit [14]

Answer: PCI- Express?

Explanation:

if that is an answer....

7 0
4 years ago
Is all binary signaling digital give resistance to error?
AfilCa [17]
Digital signals (usually binary coded) can include extra information that can be used for error detection or even correction. This allows recovery of the original signal, either by requesting retransmission or by directly correcting the error. 

<span>analog signals can't include any extra information needed for this purpose. it is impossible to distinguish an error from the original data.

cited:</span>http://www.answers.com/Q/Which_has_greater_resistance_to_transmission_errors_Binary_signaling_or_Ana...
8 0
3 years ago
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